WIDEBAND BEAM-TYPE PARAMETRIC AMPLIFIER.
Abstract
The objectives of the program were to develop a beamtype parametric amplifier at X-band with a bandwidth of 20 percent, a gain of 25 db, and a double-channel noise figure of 2 db. This final technical report covers the experimental study, design, construction, and test of the tube. Using a modified bifilar helix as the coupler circuit and a periodic quadrupole circuit as the pump circuit, an experimental Kompfner dip greater than 20 db in 6 percent of the frequency band or 10 db in 10 percent of the band was achieved. An electronic gain of 7 db, with a small variation across the band, was insufficient to overcome the 12-db loss on the couplers and electron beam. The pump power used was 14 watts. Signal and idler frequencies were investigated. The ion-oscillation problem is discussed. Other discussions are concerned with the problems of bifilar helix fabrication, electron gun alignment, and magnetic field shaping. Recommendations for future refinement are made. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1964
- Accession Number
- AD0609088
Entities
People
- Richard Eng
Organizations
- Sperry Corporation